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dnl Checks for IPv6 support
dnl
AC_DEFUN([AC_IPV6], [
AC_CHECK_DECL([AI_ADDRCONFIG],
[AC_DEFINE([HAVE_DECL_AI_ADDRCONFIG], 1,
[Define this to 1 if AI_ADDRCONFIG macro is defined])], ,
[ #include <netdb.h> ])
if test "$enable_ipv6" = yes; then
dnl TI-RPC required for IPv6
if test "$enable_tirpc" = no; then
AC_MSG_ERROR(['--enable-ipv6' requires TIRPC support.])
fi
dnl IPv6-enabled networking functions required for IPv6
AC_CHECK_FUNCS([getifaddrs getnameinfo bindresvport_sa], ,
[AC_MSG_ERROR([Missing library functions needed for IPv6.])])
dnl Need to detect presence of IPv6 networking at run time via
dnl getaddrinfo(3); old versions of glibc do not support ADDRCONFIG
AC_CHECK_DECL([AI_ADDRCONFIG], ,
[AC_MSG_ERROR([full getaddrinfo(3) implementation needed for IPv6 support])],
[ #include <netdb.h> ])
fi
])dnl
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